![](http://static.ddmcdn.com/gif/blogs/dnews-files-2013-04-glacier-melt-SMALL-e1366986215809.jpg)
From the dawn of the Roman Empire until the late 19th
century, a recent study suggested that the average surface temperatures
on Earth gradually cooled up until the 20th century.
![](http://static.ddmcdn.com/gif/earth-core-hotter-250.jpg)
Earth's internal engine is running hotter than previously
measured, providing a better explanation for how the planet generates a
magnetic field.
No comments:
Post a Comment